Last



1. c. SCH ELTER.

LAST.

. APPLICATION or. 26. 1915. v

1,330,905, Patented Feb. 17,1920. Y

' ITED STATES IATENT OFFICE.

JOHN CARL SGHELTER, OF ROCHESTER, NEW YORK, ASSIGNOR T0 FITZ-EMPIREDOUBLE PIVOT LAST COMPANY, OF AUBURN, MAINE, A CORPORATION OF MAINE.

LAST.

Specification of Letters Patent.

Patented Feb. 1'7, 1920.

V Application filed October 26, 1915. Serial No. 58,025.

To all whom it may concern:

Be it known that I, JOHN C. SGH'ELTER, a citizen of the United States,residing .at Rochester, in the county of Monroe and State of New York,have inventedcertain Improvements in Lasts, of which the followingdescription, in connection with the accompanying drawings, is aspecification,

like reference characters on the drawings indicating like parts in theseveral figures.

This invention relates to'lasts and in particular to the jack pinthimbles and anvil pins used in the heel portions to support the lastsagainst the stresses incident to the heeling and other makingoperations. Difliculty has heretofore been experienced in supporting theheel portion of a last under the pressure of the lasting sole laying,leveling and heeling machines. Two practices are resorted to in usingthese machines. According to one procedure, the last is supported bycontact with the top of its cone. The difficulty inherent in thispractice is that the lining of the shoe is often pinched. and tornbetween the top of the last and the supporting jack. In addition thecone of the last is sometimes so thin that it is unable to withstand thestress of the operation and is crushed. In the other procedure the lastis supported on a jack pin which reaches to the bottom of a metallicthimble mounted in the heel part. The entire stress of the machineoperation is thus transmitted through the thimble which is frequentlydriven into the wood, shattering the heel part of the last. It is theobject of my invention to provide a last which shall obviate these andother disadvantages inherent in lasts heretofore used and which shall becheap to manufacture.

A feature of my invention is in a last having a jack pin thimble withits end seated upon an anvil pin, and constructed and arranged to bespread upon being driven into place upon the anvil pin.

Another feature of my invention is in an anvil pin having a cellularstructure.

These and other features of the invention comprising variouscombinations and arrangements of parts will be best understood andappreciated from the following description of a preferred embodimentthereof selected for purposes of illustra tion and shown in theaccompanying drawings in which,

Figure 1 is a side elevation of a last with a part of the heel portionbroken away to showmy improved thimble and anvil pin.

Fig. 2 is a transverse cross section on the line 2-2 of Fig. 1, and

Fig. 3 is a cross section on the line 33 of Fig. 2, showing the positionof the thimbie just previous to its being driven into p ace.

The heel portion 10 has the ordinary vertical hole 11 bored in it toreceive the jack pin thimble. At the bottom of this hole 11 a transversehole 12 is bored from the side' of the last to communicate with it. Inthis hole 12 is seated the anvil pin 13 which, as shown in Fig. 2, isflared downwardly to correspond with the tapering cross section of thelast at this point, the purpose of this flare being to give the anvilpin a greater bearing surface upon the wood underneath it. The pin 13 asshown is hollow with reinforcing webs, thus affording a cellularstructure which is very resistant to stress and at. the same time lightand economical. The pin may, however, be solid if desired. The jack pinthimble 14 is recessed at its bottom at 15 to fit over the anvil pin 13.This recess is, however, slightly smaller in cross section than thecorresponding portion of the pin 13 so that, as shown in Fig. 3, it willnot sli down over the pin 13. After the thim le has been placed as inFig. 3 it is seated upon the anvil pin 13 by a heavy blow. This blowspreads the ends 16 of the thimble as shown in Fig. 1 and thereby bindsthe thimble firmly in the wood. The upper part of the thimble may have arim 17 which seats in a recess 18. A plug 19 may be inserted in the endof the hole 12 to fill out the surface of the heel portion of the last.

It will be observed that the cellular structure of my anvil pinmaterially reduces the weight of a last. It is of great importance toreduce the weight of a last as far as is compatible with strength sincean operator who handles hundreds of lasts in a day will experience muchadditional weariness and will do correspondingly poorer work if an extraounce is added to each last. He will also consequently drop many moreshoes and the percentage of cripples in the factory will be materiallyincreased. My cellular structure is of peculiar importance in an anvilpin which is flared parallel to the lateral surface of the heel sincesuch a pin if made long enough to take full advantage of the entireavailable supporting surface below it will be heavier than pinsheretofore used. The making ofsuch a pin 7 holloiv, as I have shown,enablesvthe manufacturer to take'advantage of the maximum availablesupporting surface for the anvil pin in the heel and at the same timeenables him actually to decrease the weight of his last.

My invention possesses among others the following advantages. Thethimble, having its ends clenched in the wooden heel portion, will notbecome loose and jar out. The

stress of the heeling blo-wis transmitted through the metal thimble tothe metal anvil pin which, as shown in Fig. 2, has a bearing over nearlythe entire width of the thickest part of the heel.

Having described my invention, what I claim as new and desire to secureby United States Letters Patent is i 1. In a last, an anvil pin, and ajack pin thimble having itsinner end constructed and arranged to beseated upon and spread by said anvil pin when driven into place.

2. In a last, a cylindrical anvil pin and a jack pin thimble having asubstantially cylindrical recess on its inner end, said recess beingsmaller than the corresponding portion of said anvil pin, whereby whensaid thimble is driven into contact with said anvil pin the sides ofsaid cylindrical recess will be spread into posing the last. r

3. In a last, a hollow reinforced anvil pin.

4. In a last, a cellular anvilpin.

5. In a last, a hollow anvil pin having reinforcing webs.

6. In a last, a cellular anvilpin inserted in the tapering part of thecone, and having its end faces in planes oblique to the axis of the pinand substantially parallel to the surface of the last at the ends of thepin.

In testimony whereof I have signed my name to this specification.

JOHN CARL SCHELTER.

the material com

